Yamaha 30D - LOWER UNIT LEAKAGE CHECK

6-25
E
LOWR
ASSEMBLY AND ADJUSTMENT
5. Grease the impeller, and install the
water-pump housing, turning the drive
shaft clockwise, then tighten the bolts.
165000-0
LOWER UNIT LEAKAGE CHECK
1. Tighten the gear oil-drain screw, and
connect a mity vac to the oil-level hole.
2. Pump the tester, and apply a pressure
of 100 kPa (1.0 kg/cm
2
, 14.2 psi).
Then place the gear case in the water
tank.
3. Check that the pressure is held at 100
kPa (1.0 kg/cm
2
, 14.2 psi) for 10 sec-
onds.
NOTE:
● If the pressure falls, the leakage from
lower unit is unacceptable, requiring re-
inspection of its component parts.
● Do not over-pressurize. Excess pressure
may cause the air to leak out.
Mity vac:
YB-35956/90890-06756